settingshandler.html

用JAVA编写的,在做实验的时候留下来的,本来想删的,但是传上来,大家分享吧

<a name="134" href="#134">134</a>     }
<a name="135" href="#135">135</a> 
<a name="136" href="#136">136</a>     <em>/**<em>* Strip off the leftmost part of a domain name.</em></em>
<a name="137" href="#137">137</a> <em>     *</em>
<a name="138" href="#138">138</a> <em>     * @param scope the domain name.</em>
<a name="139" href="#139">139</a> <em>     * @return scope with everything before the first dot ripped off.</em>
<a name="140" href="#140">140</a> <em>     */</em>
<a name="141" href="#141">141</a>     <strong>protected</strong> String getParentScope(String scope) {
<a name="142" href="#142">142</a>         <strong>int</strong> split = scope.indexOf('.');
<a name="143" href="#143">143</a>         <strong>return</strong> (split == -1)? <strong>null</strong>: scope.substring(split + 1);
<a name="144" href="#144">144</a>     }
<a name="145" href="#145">145</a> 
<a name="146" href="#146">146</a>     <em>/**<em>* Get a module by name.</em></em>
<a name="147" href="#147">147</a> <em>     *</em>
<a name="148" href="#148">148</a> <em>     * All modules in the order should have unique names. This method makes it</em>
<a name="149" href="#149">149</a> <em>     * possible to get the modules of the order by its name.</em>
<a name="150" href="#150">150</a> <em>     *</em>
<a name="151" href="#151">151</a> <em>     * @param name the modules name.</em>
<a name="152" href="#152">152</a> <em>     * @return the module the name references.</em>
<a name="153" href="#153">153</a> <em>     */</em>
<a name="154" href="#154">154</a>     <strong>public</strong> <a href="../../../../org/archive/crawler/settings/ModuleType.html">ModuleType</a> getModule(String name) {
<a name="155" href="#155">155</a>         <strong>return</strong> settingsCache.getGlobalSettings().getModule(name);
<a name="156" href="#156">156</a>     }
<a name="157" href="#157">157</a> 
<a name="158" href="#158">158</a>     <em>/**<em>* Get a complex type by its absolute name.</em></em>
<a name="159" href="#159">159</a> <em>     *</em>
<a name="160" href="#160">160</a> <em>     * The absolute name is the complex types name and the path leading to</em>
<a name="161" href="#161">161</a> <em>     * it.</em>
<a name="162" href="#162">162</a> <em>     *</em>
<a name="163" href="#163">163</a> <em>     * @param settings the settings object to query.</em>
<a name="164" href="#164">164</a> <em>     * @param absoluteName the absolute name of the complex type to get.</em>
<a name="165" href="#165">165</a> <em>     * @return the complex type referenced by the absolute name or null if</em>
<a name="166" href="#166">166</a> <em>     *         the complex type could not be found in this settings object.</em>
<a name="167" href="#167">167</a> <em>     * @throws AttributeNotFoundException is thrown if no ComplexType by this</em>
<a name="168" href="#168">168</a> <em>     *         name exist.</em>
<a name="169" href="#169">169</a> <em>     */</em>
<a name="170" href="#170">170</a>     <strong>public</strong> <a href="../../../../org/archive/crawler/settings/ComplexType.html">ComplexType</a> getComplexTypeByAbsoluteName(
<a name="171" href="#171">171</a>             <a href="../../../../org/archive/crawler/settings/CrawlerSettings.html">CrawlerSettings</a> settings, String absoluteName)
<a name="172" href="#172">172</a>             throws AttributeNotFoundException {
<a name="173" href="#173">173</a> 
<a name="174" href="#174">174</a>         settings = settings == <strong>null</strong> ? settingsCache.getGlobalSettings() : settings;
<a name="175" href="#175">175</a> 
<a name="176" href="#176">176</a>         <a href="../../../../org/archive/crawler/settings/DataContainer.html">DataContainer</a> data = settings.getData(absoluteName);
<a name="177" href="#177">177</a>         <strong>if</strong> (data == <strong>null</strong>) {
<a name="178" href="#178">178</a>             <a href="../../../../org/archive/crawler/settings/CrawlerSettings.html">CrawlerSettings</a> parentSettings = settings.getParent();
<a name="179" href="#179">179</a>             <strong>if</strong> (parentSettings == <strong>null</strong>) {
<a name="180" href="#180">180</a>                 <strong>throw</strong> <strong>new</strong> AttributeNotFoundException(absoluteName);
<a name="181" href="#181">181</a>             }
<a name="182" href="#182">182</a>             <strong>return</strong> getComplexTypeByAbsoluteName(parentSettings, absoluteName);
<a name="183" href="#183">183</a>         }
<a name="184" href="#184">184</a>         <strong>return</strong> data.getComplexType();
<a name="185" href="#185">185</a>     }
<a name="186" href="#186">186</a> 
<a name="187" href="#187">187</a>     <strong>protected</strong> <strong>static</strong> String getTypeName(String className) {
<a name="188" href="#188">188</a>         <strong>return</strong> (String) <strong>class</strong>2name.get(<strong>class</strong>Name);
<a name="189" href="#189">189</a>     }
<a name="190" href="#190">190</a> 
<a name="191" href="#191">191</a>     <strong>protected</strong> <strong>static</strong> String getClassName(String typeName) {
<a name="192" href="#192">192</a>         <strong>return</strong> (String) name2<strong>class</strong>.get(typeName);
<a name="193" href="#193">193</a>     }
<a name="194" href="#194">194</a> 
<a name="195" href="#195">195</a>     <em>/**<em>* Convert a String object to an object of &lt;code>typeName&lt;/code>.</em></em>
<a name="196" href="#196">196</a> <em>     *</em>
<a name="197" href="#197">197</a> <em>     * @param stringValue string to convert.</em>
<a name="198" href="#198">198</a> <em>     * @param typeName type to convert to. typeName should be one of the</em>
<a name="199" href="#199">199</a> <em>     *        supported types represented by constants in this class.</em>
<a name="200" href="#200">200</a> <em>     * @return the new value object.</em>
<a name="201" href="#201">201</a> <em>     * @throws ClassCastException is thrown if string could not be converted.</em>
<a name="202" href="#202">202</a> <em>     */</em>
<a name="203" href="#203">203</a>     <strong>protected</strong> <strong>static</strong> Object StringToType(String stringValue, String typeName) {
<a name="204" href="#204">204</a>         Object value;
<a name="205" href="#205">205</a>         <strong>if</strong> (typeName == SettingsHandler.STRING) {
<a name="206" href="#206">206</a>             value = stringValue;
<a name="207" href="#207">207</a>         } <strong>else</strong> <strong>if</strong> (typeName == SettingsHandler.TEXT) {
<a name="208" href="#208">208</a>             value = <strong>new</strong> <a href="../../../../org/archive/crawler/settings/TextField.html">TextField</a>(stringValue);
<a name="209" href="#209">209</a>         } <strong>else</strong> <strong>if</strong> (typeName == SettingsHandler.INTEGER) {
<a name="210" href="#210">210</a>             value = Integer.decode(stringValue);
<a name="211" href="#211">211</a>         } <strong>else</strong> <strong>if</strong> (typeName == SettingsHandler.LONG) {
<a name="212" href="#212">212</a>             value = Long.decode(stringValue);
<a name="213" href="#213">213</a>         } <strong>else</strong> <strong>if</strong> (typeName == SettingsHandler.BOOLEAN) {
<a name="214" href="#214">214</a>             value = Boolean.valueOf(stringValue);
<a name="215" href="#215">215</a>         } <strong>else</strong> <strong>if</strong> (typeName == SettingsHandler.DOUBLE) {
<a name="216" href="#216">216</a>             value = Double.valueOf(stringValue);
<a name="217" href="#217">217</a>         } <strong>else</strong> <strong>if</strong> (typeName == SettingsHandler.FLOAT) {
<a name="218" href="#218">218</a>             value = Float.valueOf(stringValue);
<a name="219" href="#219">219</a>         } <strong>else</strong> <strong>if</strong> (typeName == SettingsHandler.TIMESTAMP) {
<a name="220" href="#220">220</a>             <strong>try</strong> {
<a name="221" href="#221">221</a>                 value = ArchiveUtils.parse14DigitDate(stringValue);
<a name="222" href="#222">222</a>             } <strong>catch</strong> (ParseException e) {
<a name="223" href="#223">223</a>                 <strong>throw</strong> <strong>new</strong> ClassCastException(
<a name="224" href="#224">224</a>                     <span class="string">"Cannot convert '"</span>
<a name="225" href="#225">225</a>                         + stringValue
<a name="226" href="#226">226</a>                         + <span class="string">"' to type '"</span>
<a name="227" href="#227">227</a>                         + typeName
<a name="228" href="#228">228</a>                         + <span class="string">"'"</span>);
<a name="229" href="#229">229</a>             }
<a name="230" href="#230">230</a>         } <strong>else</strong> {
<a name="231" href="#231">231</a>             <strong>throw</strong> <strong>new</strong> ClassCastException(
<a name="232" href="#232">232</a>                 <span class="string">"Cannot convert '"</span>
<a name="233" href="#233">233</a>                     + stringValue
<a name="234" href="#234">234</a>                     + <span class="string">"' to type '"</span>
<a name="235" href="#235">235</a>                     + typeName
<a name="236" href="#236">236</a>                     + <span class="string">"'"</span>);
<a name="237" href="#237">237</a>         }
<a name="238" href="#238">238</a>         <strong>return</strong> value;
<a name="239" href="#239">239</a>     }
<a name="240" href="#240">240</a> 
<a name="241" href="#241">241</a>     <em>/**<em>* Get CrawlerSettings object in effect for a host or domain.</em></em>
<a name="242" href="#242">242</a> <em>     *</em>
<a name="243" href="#243">243</a> <em>     * If there is no specific settings for the host/domain, it will recursively</em>
<a name="244" href="#244">244</a> <em>     * go up the hierarchy to find the settings object that should be used for</em>
<a name="245" href="#245">245</a> <em>     * this host/domain.</em>
<a name="246" href="#246">246</a> <em>     *</em>
<a name="247" href="#247">247</a> <em>     * @param host the host or domain to get the settings for.</em>
<a name="248" href="#248">248</a> <em>     * @return settings object in effect for the host/domain.</em>
<a name="249" href="#249">249</a> <em>     * @see #getSettingsObject(String)</em>
<a name="250" href="#250">250</a> <em>     * @see #getOrCreateSettingsObject(String)</em>
<a name="251" href="#251">251</a> <em>     */</em>
<a name="252" href="#252">252</a>     <strong>public</strong> <a href="../../../../org/archive/crawler/settings/CrawlerSettings.html">CrawlerSettings</a> getSettings(String host) {
<a name="253" href="#253">253</a>         <strong>return</strong> getRefinementsForSettings(getSettingsForHost(host), <strong>null</strong>);
<a name="254" href="#254">254</a>     }
<a name="255" href="#255">255</a> 
<a name="256" href="#256">256</a>     <em>/**<em>* Get CrawlerSettings object in effect for a host or domain.</em></em>
<a name="257" href="#257">257</a> <em>    *</em>
<a name="258" href="#258">258</a> <em>    * If there is no specific settings for the host/domain, it will recursively</em>
<a name="259" href="#259">259</a> <em>    * go up the hierarchy to find the settings object that should be used for</em>
<a name="260" href="#260">260</a> <em>    * this host/domain.</em>
<a name="261" href="#261">261</a> <em>    * &lt;p/></em>
<a name="262" href="#262">262</a> <em>    * This method passes around a URI that refinement are checked against.</em>
<a name="263" href="#263">263</a> <em>    *</em>
<a name="264" href="#264">264</a> <em>    * @param host the host or domain to get the settings for.</em>
<a name="265" href="#265">265</a> <em>    * @param uuri UURI for context.</em>
<a name="266" href="#266">266</a> <em>    * @return settings object in effect for the host/domain.</em>
<a name="267" href="#267">267</a> <em>    * @see #getSettingsObject(String)</em>
<a name="268" href="#268">268</a> <em>    * @see #getOrCreateSettingsObject(String)</em>
<a name="269" href="#269">269</a> <em>    */</em>
<a name="270" href="#270">270</a>     <strong>public</strong> <a href="../../../../org/archive/crawler/settings/CrawlerSettings.html">CrawlerSettings</a> getSettings(String host, <a href="../../../../org/archive/net/UURI.html">UURI</a> uuri) {
<a name="271" href="#271">271</a>         <strong>return</strong> getRefinementsForSettings(getSettingsForHost(host), uuri);
<a name="272" href="#272">272</a>     }
<a name="273" href="#273">273</a> 
<a name="274" href="#274">274</a>     <strong>protected</strong> <a href="../../../../org/archive/crawler/settings/CrawlerSettings.html">CrawlerSettings</a> getSettingsForHost(String host) {
<a name="275" href="#275">275</a>         <a href="../../../../org/archive/crawler/settings/CrawlerSettings.html">CrawlerSettings</a> settings = settingsCache.getSettings(host, <strong>null</strong>);